Brush construction



April 30, 1940. cs. ZEHETNER MVMMW I 660120? fiefner INVENTOR' 8%ATTORNEY.

April 30, 1940. TN 2.199.252

BRUSH CONSTRUCTION Filed Aug. 26, 1938 2 Shets-Sheet 2 Patented Apr. 30,1940 V UNITED STATES eATENt -E 2,199,2 52- BRUSH coNs'raUormniGeorgeZehetner, Dallas, Tern i 7 Application August 26, 19-38;, serial;N}, 212659149;-

This invention relates to brushes. and the:par-

ticular object of the invention is to provide a brush constructionwherein the fibres, bristlesor other material of which the same are mademay be. replaced when worn and the frame of the brush used as before.

Other objects of the invention include means for seating the bristles orfibres of the brush in properly spaced relation to provide a goodbrushing contact to the object to which applied; means forxlockingthebrush fibres in the frame; and means for enabling the units to beremoved easily when desired.

The brush construction also includes a novel handle holding meanswhereby the handle may be shifted to various angles in the manipulationof the brush.

Other objects of the improved brush construc-v tion may be readilyunderstood from a perusal of the followingdetailed description-taken inconnection with the accompanying drawings and in the drawings:

Figure 1 is a side elevational View of the brush, the handle beingremoved;

Figure 2 is atop plan view of the brush, the handle ferrule and handlebeing removed;

Figure 3 is a side elevational view in fragmentary detail of one of thebrush units;

Figure 4 is a cross-sectional view, enlarged, of i one of the brushunits and related parts, the view being had along the line 4-4 of Figure2;

, Figure 5 is a side elevational view of one of the unit supportingclamps, per se;

Figure 6 is a bottom view, brush bristles or fibres removed, of one ofthe units',partly broken away; s

Figure 7 is a side elevational view of one form of handle ferrule usedin the brush construction;

Figures 8, 9, 10 and 11 are side elevational and top plan views,respectively, of a modified form of handle attaching means employed inthe brush construction.

Referring in detail to the drawings,and where-' in like parts will beindicated by like numerals and characters, the brush. is constructed ofa plurality of bristles or fibre retaining units indicated generally atl. Each of these units consists of a piece of metal formed into achannel and as shown in section in Figure 4, the channelis open alongone side as shown in Figure 6, the closed end 2 being somewhat roundedto compactly and snugly receive the bristles or fibres 3 of the brush.Figure 6 shows a bottom view of a portion of one of the channels beforethe bristles are placed therein. These channel members are made of onestrip of metalwith sidewalls 4; the. ends as at. 'Lbeing severedandi'foldedinwardly; In. the cutting orsplitting at the-'endsa smalltongue 8..results,v and this is folded-inwardly1 as. shown on theinside. of the. member. Oneside wall of 5' these channel members hasspaced projecting teeth 9. which hold the bristlesin spaced relation,

by bending. the teeth downwardly. and acrossthe opening atthe bottonrofthe channel member as shownalso ins Figurel3; the-Lend of the-teeth then10 being? folded against the opposite side of the member and securelyholding the bristles or fibres in position. The bristles 3 whichcomprise a unit are first bent over at the center thereof as shown inFigure 4 and forced down into the slightly 15 curved and closed top wallor end 2 and are held in place by a strip ID. This strip wedges thebristles against the curved Wall as shown and holds the entire spacedline of bristles or fibres in one unit in position.

After the bristles or fibres or other brush material susceptible of usein this construction are thus set in position in each of the channelmembers comprising the units, there are provided spacer clamps indicatedgenerally at I l in Figure 5. The channel members with the bristlesassembled therein and comprising a unit are then placed one resting-oneach end I2 of the clamps and one each in the openings or spaces'A. inbetween the substantially U-shaped parts B of the clamps. As shown inFigure 4, the upper wall 2 of the units are then slightly above theparts B and when the units are thus set in position a sufficient numberof screws [3 hold the units in position, in connection with the end capsl4 and the center or handle cap [5. The end caps 14 are slotted as at Hito receive the screws-awasher Ila being placed under the screwsthe samearrangement being carried in securing the center cap IS in place. Thescrews are then advanced into the respective threadedopenings indicatedat I1 in the U-shaped parts B ,and the units are thus held securely inplace. Obviously, any one or all of the units may be thus easily removedand a new unit placed in the brush.

The invention also includes a novel handle attaching means, whereby thehandle ferrule l8 as shown in Figures 1 and 7 may be utilized, or thehandle construction such as shown in Figures 8, 9, 10 and 11 may beused. The handle 50 ferrule I8 is made in one piece and includes ahandle l9 shown in part and a cap connecting foot with the flanged ends2%] which are so made as to project over the edges of the cap I5; Thefoot has an opening 2| which is slipped over the I stud bolt 22 on thecap I5 and a wing nut, 22a as shown, and of ordinary construction,advanced on the parts to hold the handle ferrule in position.

A variation of the handle attaching means is shown in Figures 8 to 11inclusive, whereby the handle may be shifted to suitable angularpositions in using the brush. For this purpose the cap l5a has a roundedhead 0 with a stud bolt D, threaded to also receive a wing nut when theparts are connected together. In this arrangement the handle ferrule 18ais secured to the handle I 9 by a bolt 23 with a nut, not shown, theferrule being split to accommodate insertion of the handle and the nuttightened,- which securely holds the handle in place. The ferrule la isformed integrally with a rounded cavity E, its underside being concaveto fit over the rounded head C of the cap. Corrugations F are formed onthe upper side or surface of the part E and a slot G formed therein toreceive the stud bolt D. Finally a lock washer H of concave form isprovided, the washer having corrugations L the undersides of which aregrooved or form hollows and which fit over the corrugations F in thepart E. Thev ferrule in this form of construction may thus be shifted tosuitable positions and the wing nut tightened and the washer will holdthe parts in place.

It is believed that the foregoing description will be clearly understoodwithout further explanation of the parts embodying the invention. It isto be understood, however, that changes, alterations and furthermodifications are capable of being made within the purview of what isshown and such as would be within the scope and meaning of the appendedclaims.

What is claimed as new is:

1. A brush structure of the class described, comprising a plurality ofsweeping elements, a plurality of elongated members for holding thesweeping elements, means for spacing the elongated members in parallelrelationship, means for holding the members in said position, saidlatter means consisting of cover caps for the top of the structure, thecover caps being removably fastened to said spacer means; said elongatedmembers providing grooves for receiving said sweeping elements in foldedand bunched groups; an elongated strip of material adapted to bereceived in said grooves of the elongated members to hold said sweepingelements inplace.

-2. A brush structure of the class described and as claimed in claim 1,and wherein said cover caps include slots for reception of means forremovably fastening said caps to said spacer means, and wherein one wallof said elongated members includes spaced teeth adapted to be bent overthe bottom of said members to hold the sweeping elements in spacedrelationship.

GEORGE ZEHETNER.

